<template>
  <div
    v-if="external"
    :style="styleExternalIcon"
    class="svg-external-icon svg-icon"
    v-on="$attrs"
  />
  <svg
    v-else
    :class="svgClass"
    aria-hidden="true"
    v-on="$attrs"
  >
    <use :xlink:href="iconName" />
  </svg>
</template>

<script lang="ts" setup>
import { isExternal } from '@/utils/validate'
import { computed, onMounted } from 'vue'

const props = defineProps({
  iconClass: {
    type: String,
    required: true
  },
  className: {
    type: String,
    default: ''
  }
})

const external = computed(() => isExternal(props.iconClass))
const iconName = computed(() => `#icon-${props.iconClass}`)

const styleExternalIcon = computed(() => {
  return {
    mask: `url(${props.iconClass}) no-repeat 50% 50%`,
    '-webkit-mask': `url(${props.iconClass}) no-repeat 50% 50%`
  }
})

const svgClass = computed(() => {
  if (props.className) {
    return `svg-icon ${props.className}`
  } else {
    return 'svg-icon'
  }
})

onMounted(() => {
  console.log('执行', props.iconClass)
})

</script>

<style lang="scss" scoped>
.svg-icon {
  width: 1em;
  height: 1em;
  vertical-align: -0.15em;
  fill: currentColor;
  overflow: hidden;
}

.svg-external-icon {
  background-color: currentColor;
  mask-size: cover!important;
  display: inline-block;
}
</style>
